#27746 [Opn->Asn]: Decrypt routines not working as per v4.3.4

[sniper]

 ID:               27746
 Updated by:       [EMAIL PROTECTED]
 Reported By:      taomyn at myway dot com
-Status:           Open
+Status:           Assigned
 Bug Type:         mcrypt related
 Operating System: Windows Server 2003
 PHP Version:      4.3.6RC1
-Assigned To:      
+Assigned To:      derick
 New Comment:

Assigned to the maintainer. :)




Previous Comments:
------------------------------------------------------------------------

[2004-03-29 15:30:34] taomyn at myway dot com

<?

        $password = "muppets";



        $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);

        $key = mhash(MHASH_MD5,substr("dimwits", 0,
mcrypt_get_key_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB)));

        print "EP===".$password."===\n";

        print "EK===".$key."===\n";

        $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); 

        $enc_pwd = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key,
$password,MCRYPT_MODE_ECB, $iv);

        print "EE===".$enc_pwd."===\n";



        $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);

        $key = mhash(MHASH_MD5,substr("dimwits", 0,
mcrypt_get_key_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB)));

        print "DP===".$password."===\n";

        print "DK===".$key."===\n";

        $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);

        $dec_pwd = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $enc_pwd,
MCRYPT_MODE_ECB, $iv);

        print "DD===".trim(chop($dec_pwd))."===\n";

?>



Under v4.3.4



EP===muppets===

EK===(ë^&#8962;&#9658;¬AÅ&#9617;z¶&#9474;zE|&#9472;===

EE===&#9827;±&#9574;        &#8616;¡6(Z&#9571;&#9571;k&#9668;Fð`===

DP===muppets===

DK===(ë^&#8962;&#9658;¬AÅ&#9617;z¶&#9474;zE|&#9472;===

DD===muppets===



Under v4.3.5



EP===muppets===

EK===(ë^&#8962;&#9658;¬AÅ&#9617;z¶&#9474;zE|&#9472;===

EE===&#9827;±&#9574;        &#8616;¡6(Z&#9571;&#9571;k&#9668;Fð`===

DP===muppets===

DK===(ë^&#8962;&#9658;¬AÅ&#9617;z¶&#9474;zE|&#9472;===

DD===&#9827;±&#9574;        &#8616;¡6(Z&#9571;&#9571;k&#9668;Fð`===



I.E. IT DOESN'T DECRYPT - HAPPY?

------------------------------------------------------------------------

[2004-03-29 03:30:57] taomyn at myway dot com

Description:
------------
My decrypting routines now fail to decrypt and in fact seem to return
the encrypted value.

Reproduce code:
---------------
function encrypt_pwd($password)

{

/* Return encrypted password */

        global $config;

        $password = trim($password);

        $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);

        $key = mhash(MHASH_MD5,substr($config['pass_phrase'], 0,
mcrypt_get_key_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB)));

 error_log("EP===".$password."===");

 error_log("EK===".$key."===");

        $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);

        $enc_pwd = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $password,
MCRYPT_MODE_ECB, $iv);

 error_log("EE===".$enc_pwd."===");

        return $enc_pwd;

}



function decrypt_pwd($password)

{

/* Return decrypted password */

        global $config;

        $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB);

        $key = mhash(MHASH_MD5,substr($config['pass_phrase'], 0,
mcrypt_get_key_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB)));

 error_log("DP===".$password."===");

 error_log("DK===".$key."===");

        $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);

        $dec_pwd = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $password,
MCRYPT_MODE_ECB, $iv);

 error_log("DD===".trim(chop($dec_pwd))."===");

        return trim(chop($dec_pwd));

}





Expected result:
----------------
[29-Mar-2004 09:35:31] EP===bubbles10===



[29-Mar-2004 09:35:31] EK===-ñ ãWqG9î„\6‚===



[29-Mar-2004 09:35:31] EE===u!‚ž+½_Yi«¡Oât===



[29-Mar-2004 09:35:50] DP===u!‚ž+½_Yi«¡Oât===



[29-Mar-2004 09:35:50] DK===-ñ ãWqG9î„\6‚===



[29-Mar-2004 09:35:50] DD===bubbles10===



Actual result:
--------------
[29-Mar-2004 09:35:31] EP===bubbles10===



[29-Mar-2004 09:35:31] EK===-ñ ãWqG9î„\6‚===



[29-Mar-2004 09:35:31] EE===u!‚ž+½_Yi«¡Oât===



[29-Mar-2004 09:35:50] DP===u!‚ž+½_Yi«¡Oât===



[29-Mar-2004 09:35:50] DK===-ñ ãWqG9î„\6‚===



[29-Mar-2004 09:35:50] DD===u!‚ž+½_Yi«¡Oât===




------------------------------------------------------------------------


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Edit this bug report at http://bugs.php.net/?id=27746&edit=1